The helper is a headless app, so you won't even know its running, all it does is allow WiFiSpoof to change your MAC Address. so the way to know if it is correctly installed is to try and change your Mac Address. If that changes, then the helper is correctly installed

Thanks for the quick reply. It seems I cant change the mac address. The buttons are grey out and it still invites me to install the helper when I launch. The operating system is Sierra and tried it many times on both computers:/